williams



FICKEN & WILLIAMS.

Treating Bone Black.

No. 62,537. Patented Mar. 5, i867.

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R. FICKEN AND F. L. WILLI AMS, OF PHILADELPHIA, PENNSYLVANIA.

7 Letters Patent No. 62,537, datetlllfarcfi 5, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, RICHARD Frcxnu and FIELDING L. WILLIAMs, of thecity and county of Philadelphia, and State of Pennsylvania, haveinvented a new and useful Machine for Cleaning and Purifying Bone-Black;and we do hereby declare the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings,'making part of this specification, inwhich- Figure 1 is an elevation of the machine partly in section.

The nature of our invention consists in constructing a machineforseparating and collecting dust and other impurities tromboneblack, a'common term for animal charcoal. In the refining of sugar, the sirup isfiltered through bonc bl aclt (broken fine, about half the size of apee.) contained in upright iron cylinders. After being used a certaintime the bone-black requires revivifying, which is done by reburning itin kilns. During this manipulation of it a quantity ,oi' fine (lust isformed, which has to be removed before using it again, as it obstructsand injures the filtration of the sirup. Various means are used toaccomplish this, as by sifting and blowing. By the use of our machinethe dust is both separated from the bone-black and collected in boxes,thereby preventing the nuisance and injury to surrounding property whichtakes place when the dust is allowed to escape into the atmosphere.

To enable other skilled in theart to make and use our invention, we willproceed to describe its construction and operation. referring todrawing, fig. 1'

A A A represent the floorsof the sugar-house. On the floor, level withthe topof the filters, is placed a castiron box, 13, about three feetwide and-four feet long. Across it is stretched a fine wire screen, K.Above the box is a funnel-shaped orifice, F, opening into the box by along narrow slit, g, about three-fourths of an inch wide, and reachingnearly across the box. C G G are hand-holes in one side, with movabledoors, through which the screen 'K can be brushed occasionally. Thebottom of this box is sunk hopper-shaped, and has an outlet rcgulatcdbya sliding door, 01. At one endof the box isplaced a fan-blower, E,having a nozzle or outlet, H, projecting into the'box 13, within an inchor two of the inlet 9. This said nozzle H is a little wider than the:said inlet, and is about six inches .decps At the opposite end of thebox 13 is an elongated wrought-iron trunk, I, for carrying oil the dustafter it passes through the screen K. This trunk is shown in fig. 1,rather shorter in proportion than we make it, as it is found that theblast is less obstructed and the dust passes through the screen betterwhen the trunk is long. The trunk is contracted to a pipe, J, about tenor twelve inches square, where it enters the first collecting box M, onthe floor below. I This box is about four feet square, of wrought iron,and it has a pipe, L, in its centre for the escape of the blasti Thispipe has a bonnet, O, secured to its top by rods, so that the blastenters the pipe L, as shown by arrow This'pipe passes through the bottomof the box, and enters a similar box,-N, on the iloor below. The blastpasses out from this box by aspipe, P leading upwards into' t'hcatmosphere. A steam pipe, having a rose,- S, on its end, passes into thepipe to saturate the dust. T is a pipe for drawing oil the water whichmay accumulate by the condensation of the steam. One

'side of these boxes M N should be removable, so as to clean out tnedust which oollccts'inthem periodically".

These pipes, J L and P, are so constructed and arranged in relation tothe boxes M and N, that the direct current of the air is broken andsuii'uscd tnroughout the boxes, so as to facilitate the depositnf thedust. The capacity of this machine as described is about sevcnty-iivethousand pounds per day, and the dust removed aboutone thousand sixhundred pounds per week. 7

"he operation of the inachineis this: The bone-black, after beingreburntand cooled, is carried by an elevator to the top of the sugar housc, 01to whatever floor the machine may be upon, and falls into the hopper Fand through the opening g. The blast from the fan E forces thebone-black against the screen K, and all the fine dust passes throughit, the larger particles collecting at the bottom on the door d, whichis opened just suiiicientiv. to allow it to escape; it there falls intoa wagon, on rails, and is thence conveyed to the filtering pipes. Thedust passes along trunk I down pipe J into box M, where the heaviestcollects; the finest passes through pipe L, where it is saturated withsteam, and falls to the bottom of box N; the blast then escapes bypip-e1 to the atmosphere almost free from dust.

What we claim as our invention, and desire to secure by Letters Patent,is-

1. We claim the box B, with its diaphragm screen K, openings 9 and d, incombination with the blower E, and trunk I, when constructed andarranged substantially as described.

2. We claim the dust-collecting boxes M and. N, constructed and arrangedsubstantially as described.

3. We claim the combination of the blower E, diaphragm box B, trunk I,and collecting boxes M and N,

constructed and arranged substantially as described.

RICHARD FICKEN,

a FIELDING L. WILLIAMS.

Witnesses:

Enwn. BROWN, P. HENRY PHILIPS.

